上游原料
pentanoyl chloride; valeryl chloridecyclohexanamine; cyclohexyl amine; cyclohexylaminepentanoic acid3-amino-2-thiophenecarboxamidepentanoic anhydride2-butylthieno[3,2-d]pyrimidin-4(3H)-one2-butyl-4-chlorothieno[3,2-d]pyrimidine3-amino-2-thiophenecarboxylic acid methyl ester; methyl 3-amino-2-thiophenecarboxylate3-amino-2-thiophenecarboxylic acid
